1 | /* |
2 | * Copyright (c) 2013 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | #ifndef __TTY_DEV_H__ |
30 | #define __TTY_DEV_H__ |
31 | |
32 | /* |
33 | * ptmx_ioctl is a pointer to a list of pointers to tty structures which is |
34 | * grown, as necessary, copied, and replaced, but never shrunk. The ioctl |
35 | * structures themselves pointed to from this list come and go as needed. |
36 | */ |
37 | struct ptmx_ioctl { |
38 | struct tty *pt_tty; /* pointer to ttymalloc()'ed data */ |
39 | int pt_flags; |
40 | struct selinfo pt_selr; |
41 | struct selinfo pt_selw; |
42 | u_char pt_send; |
43 | u_char pt_ucntl; |
44 | void *pt_devhandle; /* cloned slave device handle */ |
45 | }; |
46 | |
47 | #define PF_PKT 0x0008 /* packet mode */ |
48 | #define PF_STOPPED 0x0010 /* user told stopped */ |
49 | #define PF_REMOTE 0x0020 /* remote and flow controlled input */ |
50 | #define PF_NOSTOP 0x0040 |
51 | #define PF_UCNTL 0x0080 /* user control mode */ |
52 | #define PF_UNLOCKED 0x0100 /* slave unlock (master open resets) */ |
53 | #define PF_OPEN_M 0x0200 /* master is open */ |
54 | #define PF_OPEN_S 0x0400 /* slave is open */ |
55 | |
56 | struct tty_dev_t { |
57 | int master; // master major device number |
58 | int slave; // slave major device number |
59 | unsigned int fix_7828447:1, |
60 | fix_7070978:1, |
61 | mac_notify:1, |
62 | open_reset:1, |
63 | _reserved:28; |
64 | #if __LP64__ |
65 | int _pad; |
66 | #endif |
67 | |
68 | struct tty_dev_t *next; |
69 | |
70 | struct ptmx_ioctl *(*open)(int minor, int flags); |
71 | int (*free)(int minor, int flags); |
72 | int (*name)(int minor, char *buffer, size_t size); |
73 | void (*revoke)(int minor, struct tty *tp); |
74 | }; |
75 | |
76 | extern void tty_dev_register(struct tty_dev_t *dev); |
77 | |
78 | extern int ttnread(struct tty *tp); |
79 | |
80 | #endif // __TTY_DEV_H__ |
81 | |